gen39, the newer player with coaching would learn just as well with Aurus, Sriver, H3, 729FX, (even if it is hard sponged, it is still controllable) or XP2008 on both or either side just as well as he would learn with the most expensive rubber on the market. I would lean towards control rubbers more than hard sponged fast as F rubbers at that stage. That is why my eternal recommendations of XP 2008 stand. Gazillions of possibilities. What is important here is that the new player does a few things to get into and STAY in the sport
- find a club where he is welcome
- find a club where there are similar level of players
- find a club with many activities for the newer player (group, r. Robin, social, whatever)
- find a club that has enough tables for anyone to either play a match or train. if there are 3 players waiting on each table to play, then training gets shot out of the water. When a new player plays only matches, he doesn't get a lot to grow on, gets discouraged very easy (hey, this isn't an easy sport, we all don't grow a few levels in 2-3 days) (this is why new players leave the sport. They cannot practice, there is no activities and special attention from manager or members, and they get murdered in matches, see there is no immediate hope, and give up)
- find a club where members and manager can discuss (maybe even sell at cost, or at least help them assemble the bat) bat options and how they affect the shots
- find a club where there is an actual competent coach with a separated area to facilitate multiball/singleball training
- find a club that goes out together to competition, whether that is in a league or independent tourneys. That builds interaction while waiting for matches, team spirit cheering for each other and buying uniforms to create loyalty and identity, and of course that valuable match experience
That can be a tall order, especially if one is not within 400 km of such a facility